Carrier INFINITY 2025 - Manual (Page 6)

6
Sample Furnace Circuit Board
Power Cord
to EAC Terminals
Alternate Power Cord
Pass-Thru Hole
Use cable connector to secure
power cord to cabinet
Power Supply Connector
Power Supply
Use wire ties to secure power cord
to power supply enclosure
LHT
OFF
DLY
ON OFF
W2
BLW
EAC-1 TERMINAL
Y1
DHUM
G
COM 24V
WW1
Y/Y2
R
TEST/TWIN
HUM
1 2 3
PL
T
A CRDJ
0.5-AMP024 VAC
FUSE 3-AMP
SEC-1 SEC-2
PL1
NEUTRAL-L2
1
EAC-2
BHT/CLR BHI/LOR
PL3 1
BLWR
COOL
SPARE-1 SPARE-2
1-AMP@115 VAC
EAC-1 PR-1
IDR HSIR
IDM
IHI/LOR
PL2 1
HSI HI LO
STATU
S C OD EL
E D
EAC-2 TERMINAL
HI HEA
T
LO HEA
T
L1
Use terminals to connect the
power cord wires to the furnace
EAC-1 & 2, & ground terminals
Power Supply Connector
Power Cord
A06030
Fig. 7 -- Infinityt Air Purifier Electrical Connections
START--UP AND OPERATION
Step 1 —Checking Air Purifier Operation
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Before installing or servicing system, always turn off
main power to system. There may be more than one (1)
disconnect switch.
! WARNING
a. Attach the Infinityt Air Purifier door to the cabinet. A
magnet in the door (see Fig. 9) is used to activate a safe-
ty switch in the power supply when the door is installed.
The power supply will not energize the air purifier un-
less the safety switch is activated.
b. Turn the HVAC system power on and adjust the
thermostat or Infinityt System Control to activate the
system fan.
c. Turn the Infinityt Air Purifier power switch to on
position.
d. The power indicator light above the Air Purifier power
switch should illuminiate (see Fig. 8).
e. Check to ensure the light goes off when the Infinityt
Air Purifier power switch is set to off, when the blower
goes off, or when the HVAC system power is turned off.
Step 2 —Infinity Control
a. When the Infinityt Air Purifier is used with an Infinity
Control, the Infinity Control can be configured to
remind the homeowner when it is time to change the
Infinityt Air Purifier cartridge. This maintenance
reminder can be based on either the TrueSenset dirty
filter algorithm or time. The installer should use their
discretion to select the most appropriate option based on
the initial system static pressure.
Step 3 —Maximizing Performance
a. Maximum air purification performance is obtained
when the furnace blower is set for continuous operation
on the thermostat or Infinity Control.
Power Indicator
A06052
Fig. 8 -- Power Indicator
MAINTENANCE
The Infinityt Air Purifier is designed to require no cleaning.
Maintenance is limited to the replacement of the air purification
cartridge. Frequency of air purifier cartridge replacement may
vary depending on ductwork design and local environmental
conditions.
To replace the air purifier cartridge, complete the following
steps:
Step 1
—Turn the heating and cooling system off.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Before installing or servicing system, always turn off
main power to system. There may be more than one (1)
disconnect switch.
! WARNING
GAP
A